The purpose of this study is to provide an investigational drug to patients with a specific type of hypercholesterolemia (high cholesterol) or sitosterolemia (unusually high absorption of non-cholesterol sterols) in a treatment use setting.

Ages Eligible for Study:  8 Years and above,  Genders Eligible for Study:  Both

Criteria

Inclusion Criteria:

• Homozygous familial hypercholesterolemia or sitosterolemia

Exclusion Criteria:

• Patient has a condition which, in the opinion of the investigator, might pose a risk to the patient, interfere with participation in the study, or does not meet the additional criteria as required by the study